Future directions of luminescence dating of quartz


14-Sep-2019 00:59

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The trapped charge accumulates over time at a rate determined by the amount of background radiation at the location where the sample was buried.

Stimulating these mineral grains using either light (blue or green for OSL; infrared for IRSL) or heat (for TL) causes a luminescence signal to be emitted as the stored unstable electron energy is released, the intensity of which varies depending on the amount of radiation absorbed during burial and specific properties of the mineral.

Natural thermoluminescence (TL) signals from feldspar crystals extracted from thermally stable drill cores (T=−4.1−60.2∘C) exhibit a strong dependence on geologic and laboratory thermal conditions....

Deltas where luminescence dating is most essential due to organic-poor geologic records are also those where it is often most challenging due to unsuitable luminescence properties of quartz grains,...

[ Datation par luminescence stimulée optiquement : quelle signification en cas de blanchiment incomplet des sédiments fluviatiles ? In: Quaternaire, 15, (1-2), 2004, p 143-157 OPTICALLY STIMULATED LUMINESCENCE DATING: HOW SIGNIFICANT IS INCOMPLETE LIGHT EXPOSURE IN FLUVIAL ENVIRONMENTS?

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It includes techniques such as optically stimulated luminescence (OSL), infrared stimulated luminescence (IRSL), and thermoluminescence dating (TL).

Outlined below are recent and future research directions. Holocene eolian activity as a proxy for broad-scale landscape change on the Gila River Indian Community, Arizona.

Also, I am open to explore new research directions with graduate students and interested students are welcome to contact me. Understanding the geologic record of droughts is important for evaluating recent climate change in the context of natural variability.

These slowly decay over time and the ionizing radiation they produce is absorbed by mineral grains in the sediments such as quartz and potassium feldspar.

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The radiation causes charge to remain within the grains in structurally unstable "electron traps".The residual doses of glaciofluvial and lateral moraine crest samples were below a few Gy and age overestimations were below a few hundred years.



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